整式乘除与因式分解的初一题1.化简(1)(2a+1)(-a-2)+a(2-a)(2)[(x+y)²-(x+y)(x-y)]÷(-2-y)2.分解因式-2x³+8xy²3.已知x²-2x=2,求代数式(x-1)²+(x+3)(x-3)+(x-3)(x-1)的值
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![整式乘除与因式分解的初一题1.化简(1)(2a+1)(-a-2)+a(2-a)(2)[(x+y)²-(x+y)(x-y)]÷(-2-y)2.分解因式-2x³+8xy²3.已知x²-2x=2,求代数式(x-1)²+(x+3)(x-3)+(x-3)(x-1)的值](/uploads/image/z/1239670-46-0.jpg?t=%E6%95%B4%E5%BC%8F%E4%B9%98%E9%99%A4%E4%B8%8E%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E7%9A%84%E5%88%9D%E4%B8%80%E9%A2%981.%E5%8C%96%E7%AE%80%EF%BC%881%EF%BC%89%282a%2B1%29%28-a-2%29%2Ba%282-a%29%282%29%5B%28x%2By%29%26sup2%3B-%28x%2By%29%28x-y%29%5D%C3%B7%28-2-y%292.%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F-2x%26sup3%3B%2B8xy%26sup2%3B3.%E5%B7%B2%E7%9F%A5x%26sup2%3B-2x%3D2%2C%E6%B1%82%E4%BB%A3%E6%95%B0%E5%BC%8F%EF%BC%88x-1%EF%BC%89%26sup2%3B%2B%EF%BC%88x%2B3%EF%BC%89%EF%BC%88x-3%EF%BC%89%2B%EF%BC%88x-3%EF%BC%89%EF%BC%88x-1%EF%BC%89%E7%9A%84%E5%80%BC)
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